Steel shops, garages and barns
Shop & Metal Building Insulation in Jasper, AL
Foam on the steel so it stops raining inside and the building holds its temperature.
- Free on-site estimates
- Written quotes showing material, thickness and R-value by area
- Crawl space moisture and roof leaks checked first
Why Steel Buildings Drip
Shop and metal building insulation is one of our most common jobs around Jasper. Steel shops, garages, carports and barns are all over Walker County. Bare steel heats up in the sun and cools fast at night; when humid air touches cold steel it condenses and drips onto tools, trucks and anything stored below. In winter, a bare steel shop is nearly impossible to heat.
Closed-cell on steel
Closed-cell foam bonds to clean steel, seals seams and fastener holes, and puts an insulating, vapor-tight layer between the steel and the air inside. HomeGuide rates it at R-5 to R-7 per inch. It does not soak up water and adds stiffness. A thin coat stops drip; a thicker coat makes a shop you can heat with a small heater or cool with a mini-split.
Getting the building ready
Steel needs to be clean and dry for foam to stick. Old faced batts with torn facing, nests and loose debris come down first. We look for roof leaks at fasteners and skylights, since foam does not fix them, and we cover anything that stays inside.
Sizing it
Tell us what the building is for. A hay barn or carport may only need drip control. A woodworking or mechanic shop you heat in winter needs more. We write the thickness and R-value on the quote and price roof and walls separately, so you can do the roof first, where drip is worst.
Garages attached to the house
An attached steel garage shares a wall with the house. Sealing and insulating that wall keeps fumes and heat out of the living space, and it is a common add-on to shop work.
Converted buildings
If a shop is being turned into living space or an office, building code requirements change, and foam in occupied space may need a thermal barrier covering. Check with the county or city before a conversion. Get a free estimate
Metal Building Work
What we insulate in steel buildings.
Roof steel
Closed-cell under the panels to stop drip.
Wall panels
Foam on walls of shops you heat or cool.
Garage doors and ends
Sealing gaps around doors and end walls.
Carports enclosed
Insulating enclosed carports and lean-tos.
Old batt removal
Taking down torn, sagging insulation first.
Published Costs for Metal Buildings
| Job | Range and source |
|---|---|
| Closed-cell spray foam, installed | $3.00 to $5.00 per sq ft (HomeGuide) |
| Open-cell spray foam, installed | $1.50 to $3.50 per sq ft (HomeGuide) |
| New construction spray foam | $2.75 to $6.50 per sq ft (Fixr) |
| About 1,000 sq ft of foam | $1,500 to $5,000 (HomeGuide) |
| Blown-in, per sq ft | $1.00 to $2.80 (HomeGuide); $1.65 to $3.80 (Fixr) |
| Typical spray foam minimum | $1,000 to $2,000+ (HomeGuide) |
HomeGuide (2026) and Fixr (2025) publish these general ranges; none are steel-building specific. Height, panel profile, thickness and any coating change the total. We measure your building, and the written estimate we send is the price.
How a Shop Job Goes
1. Walk the building
Steel condition, leaks, height and use.
2. Quote
Roof and walls priced separately.
3. Clean and cover
Remove old insulation, protect contents.
4. Spray
Closed-cell to the planned thickness.
5. Hand back
Clean up and walk through.
Why Choose Us for Shop & Metal Building Insulation
Sized to use
Drip control or full insulation, your choice.
Phasing allowed
Roof first, walls later if you like.
Leaks flagged
Roof leaks are pointed out first.
Shop & Metal Building Insulation Questions
How thick should foam be in a metal shop?
About an inch of closed-cell often stops drip; 2 to 3 inches or more for a shop you heat or cool. The thickness is on the quote.
Can foam go over old insulation?
Not over loose or torn batts; those come down first so foam bonds to steel.
Will foam stop my roof from leaking?
No. Leaks should be fixed first.
Do I need to empty the shop?
Not always. We cover what stays, but vehicles and sensitive items should be moved.
Does foam in a shop need a coating?
Some uses call for a protective or fire-rated coating over foam. We tell you if yours does and list it separately.
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Get a Shop & Metal Building Insulation Estimate
Tell us the size and use of your building and we will send a written price.